19 citations · 55 across the 6 of their papers we have counts for
6 papers
A family of binaries with an extreme mass ratio
Yael Naze, Gregor Rauw, Piotr A. Kolaczek-Szymanski +2
Multiplicity is ubiquitous among massive stars. While the stellar components usually display similar masses, some binaries with extremely low mass ratios were also observed. Some o…
Apsidal motion and proximity effects in the massive binary BD+60 497
Gregor Rauw, Piotr A. Kolaczek-Szymanski, Yael Naze +1
The eccentric short-period O-star binary BD+60 497 is an interesting laboratory in which to study tidal interactions in massive binary systems, notably via the detection and charac…
The eclipsing binary systems with Scuti component -- II. AB Cas
A. Miszuda, P. A. Kołaczek-Szymański, W. Szewczuk +1
We present a complex study of the eclipsing binary system, AB Cas. The analysis of the whole TESS light curve, corrected for the binary effects, reveals 112 significant frequency p…
An absolute calibration of the near-infrared Period-Luminosity Relations of Type II Cepheids in the Milky Way and in the Large Magellanic Cloud
Piotr Wielgórski, Grzegorz Pietrzyński, Bogumił Pilecki +29
We present time-series photometry of 21 nearby Type II Cepheids in the near-infrared J, H and Ks passbands. We use this photometry, together with the Third Gaia Early Data Release…
The OGLE Collection of Variable Stars. One Thousand Heartbeat Stars in the Galactic Bulge and Magellanic Clouds
Marcin Wrona, Milena Ratajczak, Piotr A. Kołaczek-Szymański +13
We present a collection of 991 heartbeat star (HBS) candidates found in the Optical Gravitational Lensing Experiment (OGLE) project data archive. We discuss the selection process o…
Photometric Analysis of the OGLE Heartbeat Stars
Marcin Wrona, Piotr A. Kołaczek-Szymański, Milena Ratajczak +1
We present an analysis of 991 heartbeat stars (HBSs) from the OGLE Collection of Variable Stars (OCVS). The sample consists of 512 objects located toward the Galactic bulge (GB), 4…